Pure electric vehicle high-voltage interlocking control method
A high-voltage interlocking and control method technology, applied in electric vehicles, control drives, electrical devices, etc., can solve the problems of increasing the difficulty and cost of wiring harness layout, wiring harness breakage, failure, etc., and reduce the cost and difficulty of layout. , the effect of ensuring driving safety and improving transmission efficiency
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[0015] attached figure 1 As a specific embodiment of the present invention, the invention is a pure electric vehicle high-voltage interlock control method, which specifically includes the following steps: dividing the vehicle high-voltage interlock into independent systems, and each system detects its own internal The integrity of the high-voltage interlock, and then the high-voltage interlock signal is fed back to the VCU through the CAN bus, and the VCU makes a unified summary for judgment and processing.
[0016] Further, one end of the HVIL circuit of the VCU is connected to a 12V low-voltage battery, and the other end is connected to the VCU itself through the high-voltage junction box opening detection switch. After the VCU detects that the ACC power supply input is valid or the CC connection is valid, it starts to detect the HVIL input voltage. When If the VCU does not collect the voltage for 500ms continuously, it will consider that the HVIL is disconnected, and the VC...
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